Back in the 50's, there were still some old Fordson tractors that started on gas and would run on kerosene. Kerosene was cheap in those days and it was used as heating fuel. In cold weather my father was out delivering Kerosene all night much like the propane distributors in rural areas do now. The last kerosene I wold was about 10 years ago and it was actually Jet-A. But the government put a stop to that. Kerosene has to be dyed like dyed Diesel fuel to be used off road. Jet-A is not dyed and requires a special permit to buy it now. The Chevron distributor here still sells K-1 kerosene in bulk for $4 a gallon.